CAJ | 학술논문

目前大跨空间结构抗震研究的分析模型主要是基于刚性地基假设.为了更好地反映空间结构在地震作用下的反应性能,有必要把上部屋盖与下部支承结构以及下部地基作为一个整体建模分析.土结构相互作用在高层结构中研究得比较充分,空间结构研究土结构相互作用则较少.本文从土-结构相互作用模型、辐射阻尼以及地震动输入三方面对研究现状进行总结.考虑土-结构相互作用的空间结构抗震的深入研究将有助于空间结构的更合理的抗震设计.
목전대과공간결구항진연구적분석모형주요시기우강성지기가설.위료경호지반영공간결구재지진작용하적반응성능,유필요파상부옥개여하부지승결구이급하부지기작위일개정체건모분석.토결구상호작용재고층결구중연구득비교충분,공간결구연구토결구상호작용칙교소.본문종토-결구상호작용모형、복사조니이급지진동수입삼방면대연구현상진행총결.고필토-결구상호작용적공간결구항진적심입연구장유조우공간결구적경합리적항진설계.
At present,the seismic analysis of spatial structure is assumed as rigid connected.It is necessary to model the spatial structure incorporating the roof,the supporting structure and the soil medium to reflect the real seismic performance under the seismic actions.The research on the effect of soil-structure interatction(SSI) on the seismic response of the spatial structure is in initial phase although it is studied a lot in the high rise buildings.This paper is to sum up the state of the art from the perspective of SSI model,the radiation damping and the earthquake input.The research on the seismic analysis of spatial structure incorporating the SSI is beneficial to the reasonable seismic design of spatial structures.